AI DamagePeterbilt 520: problems, complaints, bulletins
Summary for the Peterbilt 520 across 11 model years: 0 owner complaints and 140 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 0 | 0 | 134 |
| Electrical system | 0 | 0 | 126 |
| Engine and cooling | 0 | 0 | 49 |
| Equipment | 0 | 0 | 35 |
| Steering | 0 | 0 | 33 |
| Service brakes | 0 | 0 | 30 |
| Powertrain | 0 | 0 | 25 |
| Fuel/propulsion system | 0 | 0 | 19 |
| Fuel system | 0 | 0 | 17 |
| Visibility | 0 | 0 | 16 |
| Structure | 0 | 0 | 11 |
| Forward collision avoidance | 0 | 0 | 9 |
| Exterior lighting | 0 | 0 | 8 |
| Suspension | 0 | 0 | 7 |
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- "Kenworth
- "KW
- "KW
- "KW
- "KW
- This optional software update is expected to be available after 08/28/2026
- "PB
- "KW -The chassis list has been updated to include 2 chassis
- Updated Sheppard Steering Gear Classification Tool link in Inspection Procedure
- Chassis list has been updated to include 10 chassis
- This optional software update is expected to be available in late August 2026 for chassis equipped with…
- This optional software update is expected to be available in late August 2026 for chassis equipped with…
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.